Optical switching system for optical wavelength-division and tim

Details Optical switching system for optical wavelength-division and tim Optical switching system for optical wavelength-division and tim

1992-02-14

1995-04-04

Chilcot, Jr., Richard E.

Optical: systems and elements

Deflection using a moving element

Using a periodically moving element

359138, 359139, 359127, H04J 400

Patent

active

054042402

ABSTRACT:
An optical switching system for optical wavelength-division and time-division multiplexed signals includes a plurality of tunable wavelength filters each of which selects a signal having a desired wavelength from an optical wavelength-division and time-division multiplexed signal, a plurality of optical memory elements each of which is supplied with an output signal of each of the plurality of tunable wavelength filters. Each optical memory element memorizes a light intensity of the output signal by being applied with a first control voltage and supplies an output port with the output signal which is converted to have a predetermined wavelength in a desired time slot. The tunable wavelength filters and optical memory elements may by replaced by wavelength filters and tunable wavelength optical memories.

REFERENCES:
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patent: 5111323 (1992-05-01), Tanaka et al.
patent: 5121381 (1992-06-01), Takahashi et al.
patent: 5189542 (1993-02-01), Oudar
patent: 5194977 (1993-03-01), Nishio
Conference Record, IEEE Global Telecommunications Conference, 28 Nov.-1 Dec. 1988, vol. 2, pp. 933-937, Hollywood US; XP40531, S. Suzuki et al., "Photonic Wavelength-Division and Time-Division Hybrid Switching Networks for Large Line-Capacity Broadband Switching Systesm", p. 934, right column, line19-p. 935, left column, Line 9; FIG. 3.
Applied Physics Letters, vol. 52, No. 9, 29 Feb. 1988, New York, US, pp. 329-331, K. Kasahara et al., "Double Heterostructure Optoelectronic switch as Dynamic Memory with Low-power Comsumption".
SE87-146 of Switching Engineering Conference of Electronics and Information Communication, entitled "A Study on Wavelength-Division and Time-Division Composite Optical Communication Networks", 1987.
Electronics Letters, No. 20, vol. 28, pp. 1088-1089, Sep. 24, 1987.
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Springer Series in Electronics and Photonics, "Photonics II", 1990, vol. 29, Springer Verlag Berlin De, pp. 358-361, Two-Dimensional Photonics Switching Network Using Wavelength Optics.
Proceedings of the Fourth Tirrenia International Workshop on Digital Communications, 19-23 Sep. 1989, pp. 333-348, Tirrenia It, XP164006, Sakaguchi et al, "Photonic Switching Capacity Extension Schemes".
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